Features include your character information, ability to switch between characters on the same account, current skill information, tranquility status, a skill training complete count down accurate to less than ΒΌ second, audible/visual notification when skill training is complete, automatic update checking to keep the Widget up to date, and a shortcut to run the game.
If you're interested, check it out here:
http://www.neoscrib.com/index.php?page=project&id=37067900. And as always, donations can be sent in-game to Ceraphin.